docs: def spkapp(targ, et, ref, sobs, abcorr):
      """
      Deprecated: This routine has been superseded by :func:`spkaps`. This
      routine is supported for purposes of backward compatibility only.
  
      Return the state (position and velocity) of a target body
      relative to an observer, optionally corrected for light time and
      stellar aberration.
  
      http://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/cspice/spkapp_c.html
  
      :param targ: Target body.
      :type targ: int
      :param et: Observer epoch.
      :type et: float
      :param ref: Inertial reference frame of observer's state.
      :type ref: str
      :param sobs: State of observer wrt. solar system barycenter.
      :type sobs: 6-Element Array of floats
      :param abcorr: Aberration correction flag.
      :type abcorr: str
      :return:
              State of target,
              One way light time between observer and target.
      :rtype: tuple
      """
      targ = ctypes.c_int(targ)
      et = ctypes.c_double(et)
      ref = stypes.stringToCharP(ref)
      abcorr = stypes.stringToCharP(abcorr)
      sobs = stypes.toDoubleVector(sobs)
      starg = stypes.emptyDoubleVector(6)
      lt = ctypes.c_double()
      libspice.spkapp_c(targ, et, ref, sobs, abcorr, starg, ctypes.byref(lt))
      return stypes.cVectorToPython(starg), lt.value